
#define _CRT_SECURE_NO_WARNINGS 1
#include <vector>
using namespace std;
class Solution {
public:
    int digit(int x)
    {
        if (x == 0) return 1;
        int ret = 0;
        while (x)
        {
            ++ret;
            x /= 10;
        }
        return ret;
    }
    int findNumbers(vector<int>& nums)
    {
        int ret = 0;
        for (int i = 0;i < nums.size();i++)
        {
            if (digit(nums[i]) % 2 == 0) ++ret;
        }
        return ret;
    }
};